170) Aschwanden,M.J., Wuelser,J.P., Nitta,N., and Lemen,J. 2008, The Astrophysical Journal, 679, 827-842
URL1="http://www.lmsal.com/~aschwand/eprints/2008_stereo1.pdf" - _loop3D.dat"
First 3D reconstructions of coronal loops with the STEREO A and B spacecraft: I. Geometry
Aschwanden,M.J., Nitta,N.V., Wuelser,J.P., and Lemen,J.R. 2008, The Astrophysical Journal, 680, 1477-1495
URL1="http://www.lmsal.com/~aschwand/eprints/2008_stereo2.pdf"
First 3D reconstructions of coronal loops with the STEREO A and B spacecraft: II. Electron Density and Temperature Measurements
Aschwanden,M.J., Wuelser,J.P., Nitta,N., Lemen,J., and Sandman, A. 2008, The Astrophysical Journal, ... (subm)
URL1="http://www.lmsal.com/~aschwand/eprints/2008_stereo3.pdf" - _movies/"
First 3D reconstructions of coronal loops with the STEREO A and B spacecraft: III. Instant Stereoscopic Tomography of Active Regions
(2) Then I work also on the 10 M-class flares of June 2007 observed with STEREO/EUVI:http://secchi.lmsal.com/EUVI/work_euvi.txt
I work on hydrodynamic modeling of these flares, trying to reproduce
the light curves of GOES and EUVI.
(3) Joint data analysis of STEREO/EUVI, GOES, and HINODE flare:
2007 Jun 1, 06:40, GOES 1-B class flare, for which Harry Warren
already published Hinode data.
Let me know if you know anybody else working on these data,
perhaps we could coordinate some joint analysis.
Cheers,
Markus
Dear Loop-interested colleagues,This is an invitation to join us in the “Active Region Loop”Working Group at the meeting“Solar activity during the onset of Solar Cycle 24”8-12 December 2008The Embassy Suites Hotel in Napa, CaliforniaWebsite: sprg.ssl.berkeley.edu/RHESSI/napa2008/index.phpWith five dedicated workshop sessions, we intend this meeting to becomplementary to the verysuccessful “Coronal Loop Meetings” that have held over the last fewyears.Building upon the wealth of observations from SOHO and TRACE, alreadyHinode and STEREOare providing new insights and novel views of active region loops thatare both strengtheningand challenging our current understanding of their fundamental nature.The torrent of datafrom the up-coming SDO mission will stretch further our currentthinking on their basic make-up,how they are heated and their dynamic qualities. Given the above, thisworking group willaddress several key science themes associated with active region loops.These will include(but not necessarily restricted to):1. Physical properties: At current instrumental resolution, are theactive region loops weobserve isothermal or multi-thermal? Are they monolithic ormulti-threaded? Will we ever beable to distinguish between these two paradigms?2. Temporal properties: Is the heat input to loops steady or impulsive?How can we use thetechniques of coronal seismology in the Hinode/STEREO/SDO era?3. Magnetic properties: Do we now truly have a 3D picture of activeregion loop topology?How well do current MHD models reproduce the magnetic structure of a"global" active region?On the other hand, how well do these models reproduce the localmagnetic structure withinan active region?Working on a common dataset:I would like to pursue the possibility of interested parties working ona common dataset tocompare various analysis techniques/approaches. This could be the focusof one/two sessions.As a first suggestion, I would put forward the dates of 2nd-6th July2007 based on therecent paper that Jane Noglik and I have submitted to Ap J. We havevery much focussedon the global aspects of AR10961 but there is much more that could beexamined.Taken as part of the of the Hinode Observing Programme (HOP) 018, thereare two activeregions visible on the solar disc with coverage from TRACE (171Angstroms), STEREO EUVI,Hinode XRT and EIS and SOHO synoptic data. Our paper can be found atsolar.physics.montana.edu/cgi-bin/eprint/index.pl?entry=7611though please note that it is going through the refereeing process aswe speak!If you have other appropriate datasets that you would like to suggestfor people to look atand work on, please email me (rwwalsh@uclan.ac.uk). Once I getresponses back, I canput together put a web-based joint list.Finally, please register for the Napa meeting atsprg.ssl.berkeley.edu/RHESSI/napa2008/abstracts.phpas soon as possible. This will not only help with the organization ofthis particular workinggroup, but will also assist the overall organizers of the meeting intheir preparation activities.You don’t necessarily have to pay the registration fee at this stage,but please indicate whichworking group(s) you will be joining and make your hotel reservations.Thanks and I hope to see you in Napa. Feel free to pass this along toanyone else who youbelieve would be interested in participating.Robert Walsh, leader – Active Region Loop Working GroupJeremiah Horrocks Institute for Astrophysics and Supercomputing,Universityof Central Lancashire,Preston, Lancashire,PR1 2 HEUnited Kingdom_______________________________________________Loops mailing list